Adjuster



H. E. BROWN.

ADJUSTER. v APPLICATION FILED JUNE 16, 1921.

1,424,799.. Patented Aug. 8, 1922.

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HARRY E; BROWN, 0F GRENOLA, KANSAS.

ADJUSTER.

Application filed June 16,

T 0 (4Z7. whom it may concern:

Be it known that l, HARRY E. Bnown, a citizen oi? the United States, residing at Grenola. in the county of Elli and State oi Kansas. have invented a new and useful Adjuster, of which the following is a specilication.

This invention aims to provide a sin'iple but ell ective means whereby a polish rod or the like may be suspended from the beam of a drilling or pumping rig.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other obj ectsin view, which will appear as the description proceeds. the invention resides in the novel construction and arrangement of parts, hereinafter described, delineated in the accompanying drawing and particularly pointed out in the appended claims, it being under stood that, within the scope of what is claimed, a mechanic may make changes, in the precise form shown, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, a device constructed in accordance with the invention, parts appearing in elevation; Figure 2 is a section taken at right angles to the show ing of Figure 1, parts being removed, and parts appearing in elevation; Figure 3 is a transverse section, showing the lower clamp; Figure 4 is an elevation showing one member of the spreader; Figure 5 is an elevation showing one member 01 the upper clamp.

The numeral 1 marks a beam of the sort which forms part ol a well drilling or pumping rig, the beam, ordinarily, having a slot 2 in its end. The device forming the subject matter oi this application comprises an upper clamp, denoted generally by the numeral 3 and comprising a back plate +1 having an arch 5 provided with an eye 6 whereby the upper clamp may be handled conveniently. The back plate 4 has a projecting core 7. The upper clamp 3 includes a front plate 8 shown in Figure 5 and so shaped that it will fit beneath the arch 5 of the back plate 4, the plates 8 and 4 having registering open ings 10 for the reception of a securing element 9, whereby the plates of the clamp may be held together. The front plate 8 has a core 70, shaped like, and abut- Letters Patent.

Patented Aug. 8, 1 922,

1921. Serial No. 478,120.

ting against, the core 7. The plate 8 is provided with a loop-shaped groove 10, communicating with a neck 1-1, the back plate 1 of the upper clamp being similarly equipped The back plate 4- carries lateral. trunnions 30, mounted to rock on the upper edge of the beam 1 and seated. therein, the upper clamp 3 extending downwardly into the slot 2 of the beam.

Disposed below the upper clamp 3 is a spreader 11 made up of cooperating 'memhere 12 which are reduced at their upper ends, as shown in Figure 4. The members 12 have cooperating grooves 14, provided with branches 15. The members 12 of the spreader 11 are held together by a securing element 16, the members of the spreader having registering openings 17 for the reception of the securing element.

The numeral 18 denotes a cable, which is formed into a loop about the cores 7 and 70 of the members of the upper clamp 53, the bend. of the loop being located in the groove 40, and the side portions of the cable being located, in parallel relation, in the registering necks 411. The cable passes into the groove 14: of the spreader 11 and out of the branches 15, in a way which will be clear when Figures 2 and 1 are noted. The side portions of the cable are held apart by the spreader, to avoid friction between the side portions of the cable, to accommodate the lower clamp, and to make place tor the polish rod, as hereinafter described. The ends of the cable 18 are enlarged as at 19 and are seated in connectors 20 having flattened ends 29 provided with elongated slots 28.

The numeral 21 denotes a lower clamp embodying jaws 22 having oppositely disposed seats 50. adapted to receive the polish rod 51,01 other object which is to be held. The jaws 22 are provided with lateral projections 23 received in the slots 28 of the connectors 20, and, thus, the lower clamp 21 is suspended by the cable 18. The jaws 22 have outstanding end flanges 24; received within a C-shaped grip 25 carrying a set screw 26 engaging one of the flanges 2 1, to hold the grip in place. A tightening element, such as a bolt 27, is mounted in the jaws 22 and has a ball head 31 engaging one jaw, a hand nut 32 being threaded on the bolt and engaging the other jaw.

The device forming the subject matter of this application fiords a simple but eflicient means whereby a polish rod or the like may be assembled with the beam of a drilling rig, the necessary relative movements and adjustments between the parts being provided for. a

Attention is directed to the fact that the connectors 20 may be engaged readily with the projections or trunnions 23, and, with equal lacility, be detached therefrom. This construction is advantageous when it becomes necessary to pull a rod or make changes, due to the breaking of parts, or to any other cause, it being unneessary to take the clamp shown in Figure 3 off the polish rod 51. The construction alluded to also insures a proper travel in the barrel. Since the connectors 20 may be cast off when desired, it is never necessary for an operator to mount the beam 1.- The spreader 11 is an important feature, since it keeps the cables from twisting, and also spaces the cables apart enough so that they can be disengaged from and connected to the clamp.

I claim i 1. In a device of the class described, an

upper clamp; means for mounting the upper clamp for swinging movement; a spreader; a lower clamp; a cable looped in the upper clamp and having its ends separated by the spreader; and means for connecting the ends of the cable with the lower clamp.

'2. In a device of the class described, an upper clamp; means for mounting the upper clamp for swinging movement; a lower clamp; aspreader disposed between the clamps and made up of cooperating members having registering grooves provided with registering branches; means for con necting the members of the spreader releasably; a flexible element looped in the upper clamp and extended through'the grooves and the branches of the spreader; and means for connecting the ends of the flexible element with the lower clamp.

3. In a device of the class described, an upper clamp including a back plate surmounted by an arch from which trunnions project, and. a front plate received within the arch, the plates having cooperating cores, and a securing element connecting the plates; a cable looped about the cores and disposed between the plates of the upper clamp; a lower clamp carried by the lower ends oi the cable; and a spreader assembled with the end portions of the cable and located between the clamps.

4t. In a device of the class described, a clamp having projections; connectors engaged detachably with the projections; flexible elements united at their lower enr with the connectors; and means for mounting the flexible elements at their upper ends on the beam of apumping rig.

5. A clamp comprising approximately parallel members having cooperating. seats for the reception of a polishrod or the like and located nearer to one end of the clamp than to the other end thereof; means for connecting said members at that end of the clamp which is nearest to the seats; a tightening device connecting said members at that end of the clamp which is most remote from the seats; suspension elements; and means'f or connecting each suspension element detachably with one of said members.

In testimony that I claim the foregoing as my own, I have hereto afiiixed my signature in the presence of two witnesses.

HARRY E. BROWN.

lVitnesses ELVA SNoDenAss, LEWIS KYsnR. 

